Question

Write an assembly language program to find smallest number in block which begins from memory location E200H to E210H. Store the result in the accumulator.

Answer 1

      LXI H, E000H    ; Initialize HL pair with the starting address
      MVI C, 10H      ; Set counter (Assuming block size is 16 elements)*
      MOV A, M        ; Load the first number into Accumulator (Assume it's the smallest)

LOOP: INX H           ; Increment HL to point to the next location
      CMP M           ; Compare Accumulator with the current memory byte (A - M)
      JC SKIP         ; If A < M, Carry = 1. Accumulator is already smaller, so skip.
      MOV A, M        ; If A >= M, the new number is smaller. Update Accumulator.

SKIP: DCR C           ; Decrement the counter
      JNZ LOOP        ; If counter is not zero, repeat the loop
      HLT             ; Stop. The smallest number remains in the Accumulator.